What causes the temp to decrease with height in the mesosphere? Within the mesosphere, temperature decreases with increasing height, due to decreasing absorption of solar radiation by the rarefied atmosphere and increasing cooling by CO2 radiative emission. The top of the mesosphere, called the mesopause, is the coldest part of Earth’s atmosphere. Does temperature increase […]
What is a specular material?
What is a specular material? (of reflected light) directed, as from a smooth, polished surface (opposed to diffuse ). A specular surface is a highly smooth surface. When the surface is very smooth, the reflected highlight is easy to see. Why can’t you see your image on a concrete wall? Answer. Answer: You get diffuse […]
How long does it take a ball to fall from a roof to the ground 7.0 m below?
How does deicing with salt negatively impact the environment?
How does deicing with salt negatively impact the environment? How does de-icing roads with salt negatively impact the environment? It removes necessary salt from the local water courses. c. The high salinity of the surface runoff is harmful to freshwater ecosystems. What are the environmental impacts of salt? But it can also have serious, negative […]
Is h20 dative covalent bond?
Is h20 dative covalent bond? H2O(l) + H+(aq) [H3O]+, a pair of electrons (a lone pair) from the oxygen atom of the water is donated to a proton to form an oxygen-hydrogen dative (co-ordinate) covalent bond in the oxonium ion. Is CO2 polar or nonpolar molecule? Polar molecules have a non-zero net dipole moment. Both […]
What are the two main sources of thermal energy?
What are the two main sources of thermal energy? 1. Describe three ways in which thermal energy is found in nature. Thermal energy is found in the sun (solar energy), below Earth’s surface (geothermal energy), and in fire and other chemical reactions, and decay. What are main sources of heat? Sun is the biggest source […]
Why do we need SI unit?
Why do we need SI unit? SI unit is an international system of measurements that are used universally in technical and scientific research to avoid the confusion with the units. Having a standard unit system is important because it helps the entire world to understand the measurements in one set of unit system. What is […]
What are the 4 sources of stress?
What are the 4 sources of stress? The top four sources for stress are: Money. Work. Family responsibilities. Health Concerns. What are the 6 sources of stress? There are six main areas that can lead to work-related stress if they are not managed properly. These are: demands, control, support, relationships, role and change. What are […]
Is misoprostol more effective orally?
Is misoprostol more effective orally? Although in a majority of comparative studies vaginal administration of misoprostol has been shown to be more effective than oral administration,9,10 misoprostol may take a long time to dissolve in the vagina, and there may be variability in vaginal absorption between individual woman. What happens if misoprostol Falls? It’s OK […]
What is Isrelaxation time?
What is Isrelaxation time? Relaxation time is the time gap between two successive electron collisions in a conductor. The relationship between the relaxation time (T) and drift velocity (Vd) is given below. What is the symbol of relaxation time? (i) Relaxation time (τ): In the absence of an external electric field, the free electrons in […]